Draft-equalizer



(No Model.) 2 Sheets-Sheet 1.

11.11.& R. M. 1111111011.. DRAFT BQUALIZER.

No. 501,141. 1 Fa -19111611111 1 11,1893.

1 i 1 R1 @l1lm111111111u111m11111111111 NITED. STATES PATENT OFFICE.

HENRY HICKOK AND RUFUS'M. HICKOK, OF WOONSOOKET, SOUTH DAKOTA.

DRAFT-EQUALIZER.

SPECIFICATION forming part of Letters Patent No. 501,141, dated July 11,1893.

Application filed October 12.1%92. sen-an... 448,697. (No model.)

To all whom it may concern.-

Be it known that we, HENRY M. HIOKOK and RUFUS M. HICKOK, citizens ofthe United States, residing at Woonsocket, in the'county of Sanborn andState of South Dakota, have lnvented certain new and useful Improvementsin Draft Equalizers; and we do hereby declare the following tobe a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersof reference marked thereon, which form a part of this specification.

Our invention relates to an improved draftequalizer adapted moreparticularly for four horses, and for plows, While it is equallyapplicable to harvesters, and it has for its object to accommodate thesundry adjustments necessary'to vary the point of hitching to the beamor tongue, higher or lower, and to regulate or even up the leverage asoccasion may require, and to these ends the invention consists in theseveral combinations of parts and their arrangement, substantially ashereinafter more fully disclosed and pointedout in the claims.

In the accompanying drawings-Figure 1 is a plan view of our improveddraft equalizer as applied for use to a plow, a portion of a plow-beambeing shown. Fig. 2 is an enlarged detailed detached perspective view ofthe Whiffletreeplate lever, and Fig. 3 is an en'- larged detailedperspective view, showing the pulley carrying adjusting clip-plate, andFig,

4 is a cross-section of our improved draft equalizer. Fig. 5 is amodification of our invention, showing it as applied to the tongue of avehicle, and Fig. 6 is another modification of our invention, showing itas applied to the tongue of a harvester.

In carrying out ourinvention, we employ as usual, the whifflctree ordraft bar A, to one end of which is clipped a whiftletree B and, at itsother end, is clipped a single-tree 0, all done in the ordinary way, thesingle-tree, however, being directly at the front side of thewhiftletree bar, and the whiftletreeB being above the latter. Thewhiffietree B' has connected or clipped to it, at one end, a singletree0, and connected or pivoted to its other end is a whiftletree-platelever D, carrying or having centrally clipped or pivoted to it adoubletree E provided at each end with a singletree F, in the ordinarymanner.

G is an adjusting clip-bar adapted to be pivoted or connected to theplow-beam clevis H by a suitable bolt (1 passed through paralleleye-ended arms 'a' of said bar and the desired one of the series ofadjusting apertures of the clevis, according as to whether it isrequired to efiect the point of hitching higher or lower to theplow-beam for obvious purposes. The clip-bar G carries, at one end, apulley b, and is adapted to be connected to the whiftletree bar Apreferably, .by a U- shaped link or loop 0 playing in an eye-bolt cprojecting from the rear edge or side of said whiffletree-bar, near theend thereof, carrying the whiftletree B. Through eye-ended portions ofthe loop or link 0 is inserted a bolt d also adapted to be insertedthrough the desired one of the series of adjusting apertures d of theclip-bar G according as to whether it is required to increase ordecrease the leverage of the whiffietree carrying end of the bar A.

I is a chain or line having one end suitably connected to the bar A,near that end carrying the singletree, thence passed around the pulley band having its other end connected to one end of the whiffletree platelever D the nearer end. Thus the pulling force or draft of the twointermediate or middle horses of the team will be readily equalized bythe conjoint pulling action of the other two horses, each pulling from asingle point, and yet ample independent movement is allowed each of themiddle, as well as theoutside, horses,while draft-bar having anangular'or curved offsetportion a loosely connected with an'eye a formedor integral with one corner of a clip B fitted and held upon the tongue,draft-bar A extends underneath the tongue and has its distant or freeend connected by a chain a to the frame supporting the elevator, justabove the cutter-bar.

Having described our invention, what We claim is 1. In a draftequalizer, the combination with a draft or whiffletree-bar equipped witha suitable whifiletree and a singletree and said whifiletree with anumber of singletrees, of the clip-bar carrying at one end a pulley, andhaving its other end connected to said whiffietree-bar, thewhiflietree-plate lever pivoted to one end of said whifiletree andcarrying a doubletree, and aline or chain connected to saidwhifiletree-plate lever and passed around said pulley, and connected tosaid Whiflletree-bar, substantially as set forth.

2. In a draft-equalizer, the combination with a Whiitletree bar, of theclip-bar carrying a pulley at one end, and having a series of adjustingapertures, the link or loop and bolt connecting said clip-bar with saidwhiffletree-bar, and the whiflletree-plate lever con- Said nected to oneend of whiflletree carried by said whiflietree-bar, and achain or linehavingone end connected to said latter bar, passed around said pulley,and having its other end connected to said lever, substantially asspecifled.

3. In a draft-equalizer the combination with a plow-beam clevis, of theadjusting clipbar adapted to be connected to said clevis, and carryingat one end, a pulley, a whifiletree-bar, a link and bolt connecting saidclipbar with said latter bar, a whiflletree-plate lever pivoted to oneend of a Whiffletree, carried by said whifiietree-bar, and itselfcarrying a doubletree, and a line or chain having one end connected tosaid whiflietree-bar, passed around said pulley and having its other endconnected to one end of said lever, substantially as specified.

In testimony whereof We affix our signatures in presence of twowitnesses.

HENRY M. HIOKOK. RUFUS M. IIICKOK.

Witnesses:

WM. H. BURDEOK, EBER WILDE.

